EP0804968B1 - Device for producing an adjustable fluid jet - Google Patents
Device for producing an adjustable fluid jet Download PDFInfo
- Publication number
- EP0804968B1 EP0804968B1 EP97106508A EP97106508A EP0804968B1 EP 0804968 B1 EP0804968 B1 EP 0804968B1 EP 97106508 A EP97106508 A EP 97106508A EP 97106508 A EP97106508 A EP 97106508A EP 0804968 B1 EP0804968 B1 EP 0804968B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- nozzle tube
- plunger
- elastic element
- actuating piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000012530 fluid Substances 0.000 title claims description 3
- 239000007788 liquid Substances 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
Definitions
- the invention relates to a device for generating a adjustable liquid jet, especially when applying Glue and / or soft liquid on a web, with a nozzle head, one with one at the end one with the one to be processed Arranged liquid flow path Opening provided nozzle, being in the area of the opening elastic element is provided, the one with the Has flow path communicating passage recess and that between two by means of one on the nozzle holder provided adjusting device adjustable relative to each other Press organs inform one of the front, the elastic element receiving nozzle tube and an engaging, pierced pressure bolt is arranged.
- a at least one with the passage recess of the elastic Elements communicating, through hole provided Piston arrangement is provided, which in the nozzle tube, the Nozzle head is rigidly attached, engaging pressure bolts, one adjoining this, on the side facing away from the pressure pin Side a pressure chamber to which a pressure medium can be applied limiting actuating piston and one of them on the Push pin protruding from the opposite side, one has a smaller diameter sealing pin, the sealing in one going from the pressure room, with the processing fluid pressurized bore intervenes.
- the drawing shows a nozzle head according to the invention partially on average.
- the nozzle head 5 shown consists of a housing block 40, to which a nozzle 41 is flanged. This has one on her front end conically narrowed, a front opening 34 having nozzle tube 19 which is connected to a rear flange 42nd is formed, which is fastened to the housing block 40 by screws is.
- a Housing block 40 provided cylinder space 43. This owns a larger diameter than the bore of the nozzle tube 19 and is closed outside of this by the flange 42.
- elastic element 18 is provided, which is a central Passage recess 17 which is in the region of the front Opening 34 of the nozzle tube 19 opens out and with a feed line 16 for in the form of a beam onto a substrate, for example a moving paper web, liquid that can be applied, for example glue or soft liquid.
- a substrate for example a moving paper web
- liquid that can be applied for example glue or soft liquid.
- the nozzle tube 19 which is rigidly arranged is inserted and supported by this elastic element 18 by an in the nozzle tube 19 engaging pressure pin 20 more or less strongly pressed against the associated support surface of the nozzle tube 19.
- the pressure pin 20 is in the housing block 40 arranged actuating device actuated.
- an adjusting piston 44 is arranged in the cylinder space 43 provided, of which the one with a smaller diameter Push pin 20 protrudes downwards and on the Push pin 20 opposite side a pressure chamber 45 limited by a supply connection 46 with a Pressure medium, for example compressed air, can be acted upon.
- the pressure of the pressure medium can be used to regulate the crushing of the elastic element 18 to be adjustable.
- the maximal Actuating movement of the actuating piston 44 is by a stop limited.
- the flange 42 can be threaded be provided in which an adjusting screw 47 is received, the forms an adjustable stop.
- the flange 42 can also with be provided with a ventilation recess 48.
- a blind bore 49 goes upwards, into which the feed line 16 opens for the liquid to be processed.
- an attached to the actuating piston 44 engages the sealing pin 50 opposite the pressure pin 20. This is opposite the wall of the blind bore 49 by means of O-rings sealed.
- the actuating piston 44 is also opposed by O-rings sealed the wall of the associated cylinder space 43.
- the actuating piston 44 and the pressure bolt 20 and Sealing pin 50 form a piston arrangement in the form of a Stepped piston.
- This entire piston assembly is one central through hole 51 to which the Through recess 17 of the elastic element 18 connects, whereby the through recess 17 of the elastic Element 18 is connected to the feed line 16.
- the depth of engagement of the sealing pin 50 in the blind bore 49 is larger than that maximum travel of the actuating piston 44, so that the sealing pin 50th in any case remains in engagement with the blind bore 49, whereby the pressure chamber 45 reliably with respect to the feed line 16 for the liquid to be processed remains sealed. This will regardless of the position of the actuating piston 44 via the central Through recess 51 of the central through recess 17 of the elastic element 18 supplied.
Landscapes
- Coating Apparatus (AREA)
- Nozzles (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zur Erzeugung eines einstellbaren Flüssigkeitsstrahls, insbesondere beim Auftragen von Leim und/oder Soft-Flüssigkeit auf eine Bahn, mit einem Düsenkopf, der eine mit einer am Ende eines mit der zu verarbeitenden Flüssigkeit beaufschlagbaren Strömungswegs angeordneten Öffnung versehene Düse trägt, wobei im Bereich der Öffnung ein elastisches Element vorgesehen ist, das eine mit dem Strömungsweg kommunizierende Durchgangsausnehmung aufweist und das zwischen zwei mittels einer auf dem Düsenhalter vorgesehenen Stelleinrichtung relativ zueinander verstellbaren Preßorganen inform eines vorne verengten, das elastische Element aufnehmenden Düsenrohrs und eines in diese eingreifenden, durchbohrten Druckbolzens angeordnet ist.The invention relates to a device for generating a adjustable liquid jet, especially when applying Glue and / or soft liquid on a web, with a nozzle head, one with one at the end one with the one to be processed Arranged liquid flow path Opening provided nozzle, being in the area of the opening elastic element is provided, the one with the Has flow path communicating passage recess and that between two by means of one on the nozzle holder provided adjusting device adjustable relative to each other Press organs inform one of the front, the elastic element receiving nozzle tube and an engaging, pierced pressure bolt is arranged.
Eine Anordnung dieser Art ergibt sich aus der EP-A 0 726 095 oder der US-A-5 323 963 (vgl. Oberbegriff des Anspruchs 1). Hierbei sind das Düsenrohr beweglich und der in dieses eingreifende Druckbolzen starr angeordnet. Es ist daher eine vergleichsweise aufwendige, einen größeren Teilebedarf erfordernde Anordnung zur Betätigung des beweglichen Düsenrohrs erforderlich. An arrangement of this type results from EP-A 0 726 095 or US-A-5 323 963 (cf. preamble of claim 1). Here, the nozzle tube is movable and the one engaging in it Pushpin rigidly arranged. It is therefore a comparative one complex arrangement requiring a larger part requirement Operation of the movable nozzle tube required.
Hiervon ausgehend ist es daher die Aufgabe der vorliegenden Erfindung, eine Vorrichtung oben erwähnter Art mit einfachen und kostengünstigen Mitteln so zu verbessern, daß eine vergleichsweise einfache Ausbildung der Stelleinrichtung gewährleistet ist.Based on this, it is therefore the task of the present one Invention, a device of the type mentioned above with simple and to improve inexpensive means so that a comparative simple training of the actuating device is guaranteed.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß eine mit wenigstens einer mit der Durchgangsausnehmung des elastischen Elements kommunizierenden, durchgehenden Bohrung versehene Kolbenanordnung vorgesehen ist, die den in das Düsenrohr, das am Düsenkopf starr angebracht ist, eingreifenden Druckbolzen, einen hieran anschließenden, auf der vom Druckbolzen abgewandten Seite einen mit einem Druckmittel beaufschlagbaren Druckraum begrenzenden Stellkolben und einen hiervon auf der dem Druckbolzen gegenüberliegenden Seite abstehenden, einen kleineren Durchmesser aufweisenden Dichtzapfen aufweist, der dichtend in eine vom Druckraum abgehende, mit der zu verarbeitenden Flüssigkeit beaufschlagbare Bohrung eingreift.This object is achieved in that a at least one with the passage recess of the elastic Elements communicating, through hole provided Piston arrangement is provided, which in the nozzle tube, the Nozzle head is rigidly attached, engaging pressure bolts, one adjoining this, on the side facing away from the pressure pin Side a pressure chamber to which a pressure medium can be applied limiting actuating piston and one of them on the Push pin protruding from the opposite side, one has a smaller diameter sealing pin, the sealing in one going from the pressure room, with the processing fluid pressurized bore intervenes.
Diese Maßnahmen ergeben in vorteilhafter Weise einen geringen Teilebedarf und gewährleisten dennoch eine zuverlässige Dichtheit des der zu verarbeitenden Flüssigkeit zugeordneten Strömungswegs. Hierdurch werden daher eine kostengünstige Herstellung sowie eine hohe Wartungsfreundlichkeit gewährleistet.These measures advantageously result in a low one Parts required and still ensure reliable tightness assigned to the liquid to be processed Flow path. This makes it an inexpensive Manufacturing and a high level of maintenance friendliness guaranteed.
Vorteilhafte Ausgestaltungen und zweckmäßige Fortbildungen der übergeordneten Maßnahmen sind in den Unteransprüchen angegeben und aus der nachstehenden Beispielsbeschreibung anhand der Zeichnung entnehmbar.Advantageous refinements and practical training of overriding measures are in the subclaims specified and from the example description below can be seen from the drawing.
Die Zeichnung zeigt einen erfindungsgemäßen Düsenkopf teilweise im Schnitt. The drawing shows a nozzle head according to the invention partially on average.
Der grundsätzliche Aufbau und die grundsätzliche Wirkungsweise der vorliegenden Anordnung entsprechen der Anordnung gemäß EP-A 0 726 095, worauf zur Vermeidung von Wiederholungen Bezug genommen wird. In der nachstehenden Beschreibung werden daher in erster Linie die Unterschiede behandelt, wobei für gleiche Teile gleiche Bezugszeichen Verwendung finden.The basic structure and the basic mode of operation the present arrangement correspond to the arrangement EP-A 0 726 095, whereupon to avoid repetitions Reference is made. In the description below therefore primarily dealt with the differences, being the same Parts with the same reference numerals are used.
Der dargestellte Düsenkopf 5 besteht aus einem Gehäuseblock 40,
an den eine Düse 41 angeflanscht ist. Diese besitzt ein an ihrem
vorderen Ende konisch verengtes, eine vordere Öffnung 34
aufweisendes Düsenrohr 19, das an einen rückwärtigen Flansch 42
angeformt ist, der durch Schrauben am Gehäuseblock 40 befestigt
ist.The
An die Bohrung des Düsenrohrs 19 schließt sich ein dem
Gehäuseblock 40 vorgesehener Zylinderraum 43 an. Dieser besitzt
einen größeren Durchmesser als die Bohrung des Düsenrohrs 19
und ist außerhalb dieses durch den Flansch 42 verschlossen.At the bore of the
Im vorderen Bereich des Düsenrohrs 19 ist ein mit einem
angeformten Konus in die konische Verengung des Düsenrohrs 19
eingreifendes, elastisches Element 18 vorgesehen, das eine zentrale
Durchgangsausnehmung 17 aufweist, die im Bereich der vorderen
Öffnung 34 des Düsenrohrs 19 ausmündet und mit einer Zuleitung
16 für die in Form eines Strahls auf ein Substrat, beispielsweise eine
bewegte Papierbahn, aufbringbare Flüssigkeit, beispielsweise Leim
oder Soft-Flüssigkeit, verbunden ist. Zur Einstellung des
Strahldurchmessers und damit des Mengendurchsatzes wird das
elastische Element 18 mehr oder weniger gequetscht, wodurch sich
die lichte Weite seiner Durchgangsausnehmung 17 verändert.In the front area of the
Hierzu wird das in das starr angeordnete Düsenrohr 19 eingelegte
und von diesem abgestützte elastische Element 18 durch einen in
das Düsenrohr 19 eingreifenden Druckbolzen 20 mehr oder weniger
stark an die zugeordnete Stützfläche des Düsenrohrs 19 angepreßt. For this purpose, the
Der Druckbolzen 20 wird durch eine im Gehäuseblock 40
angeordnete Stelleinrichtung betätigt.The
Hierzu ist ein im Zylinderraum 43 angeordneter Stellkolben 44
vorgesehen, von dem der einen kleineren Durchmesser aufweisende
Druckbolzen 20 nach unten absteht und der auf der dem
Druckbolzen 20 gegegenüberliegenden Seite einen Druckraum 45
begrenzt, der über einen Versorgungsanschluß 46 mit einem
Druckmittel, beispielsweise Preßluft, beaufschlagbar ist. Der Druck
des Druckmittels kann zur Regulierung der Quetschung des
elastischen Elements 18 einstellbar sein. Die maximale
Stellbewegung des Stellkolbens 44 wird durch einen Anschlag
begrenzt. Hierzu kann der Flansch 42 mit einer Gewindebohrung
versehen sein, in der eine Stellschraube 47 aufgenommen ist, die
einen einstellbaren Anschlag bildet. Der Flansch 42 kann auch mit
einer Entlüftungsausnehmung 48 versehen sein.For this purpose, an adjusting piston 44 is arranged in the
Von dem durch den oberen Bereich des Zylinderraums 43
gebildeten Druckraum 45 geht eine Sackbohrung 49 nach oben ab,
in die die Zuleitung 16 für die zu verarbeitende Flüssigkeit mündet.
In die Sackbohrung 49 greift ein an den Stellkolben 44 angesetzter,
dem Druckbolzen 20 gegenüberliegender Dichtzapfen 50 ein. Dieser
ist durch O-Ringe gegenüber der Wand der Sackbohrung 49
abgedichtet. Ebenso ist der Stellkolben 44 durch O-Ringe gegenüber
der Wand des zugeordneten Zylinderraums 43 abgedichtet.From that through the upper area of the
Der Stellkolben 44 sowie der hieran angesetzte Druckbolzen 20 und
Dichtzapfen 50 bilden eine Kolbenanordnung in Form eines
Stufenkolbens. Diese gesamte Kolbenanordnung ist mit einer
zentralen Durchgangsbohrung 51 versehen, an die die
Durchgangsausnehmung 17 des elastischen Elements 18
anschließt, wodurch die Durchgangsausnehmung 17 des elastischen
Elements 18 mit der Zuleitung 16 verbunden ist. Die Eingriffstiefe
des Dichtzapfens 50 in die Sackbohrung 49 ist größer als der
maximale Stellweg des Stellkolbens 44, so daß der Dichtzapfen 50
in jedem Fall im Eingriff mit der Sackbohrung 49 bleibt, wodurch
der Druckraum 45 zuverlässig gegenüber der Zuleitung 16 für die
zu verarbeitende Flüssigkeit abgedichtet bleibt. Diese wird
unabhängig von der Stellung des Stellkolbens 44 über die zentrale
Durchgangsausnehmung 51 der zentralen Durchgangsausnehmung
17 des elastischen Elements 18 zugeführt.The actuating piston 44 and the
Claims (4)
- Device for generating an adjustable jet of liquid, in particular for the application of glue and/or soft liquid to a substrate, with a nozzle head (5) supporting a nozzle (41) provided with an orifice (34) located at the end of a flow path on which the liquid to be processed may act, wherein there is provided in the area of the orifice (34) an elastic element (18) which has a continuous recess (17) connected to the flow path and which is arranged between two press elements adjustable relative to one another by means of an adjusting device provided on the nozzle head (5), in the form of a nozzle tube (19) narrowing at the front and holding the elastic element (18), and a bored-through plunger (20) engaging in the nozzle tube, characterised in that there is provided a piston assembly provided with at least one continuous bore (51) communicating with the continuous recess (17) of the elastic element (18), and which has the plunger (20) which engages in the nozzle tube (19) fixed rigidly to the nozzle head (5), an adjacent actuating piston (44) bounding on the side facing away from the plunger (20) a pressure chamber (45) on which a pressure medium may act and, extending away from the actuating piston on the side opposite the plunger (20), a sealing pin (50) of smaller diameter which engages with sealing in a bore (49) extending away from the pressure chamber (45) and which may be supplied with the fluid to be processed.
- Device according to claim 1, characterised in that the nozzle tube (19) is provided with a flange (42), by means of which the cylinder space (43) of the nozzle head (5) accommodating the actuating piston (44) may be closed outside the nozzle tube (19).
- Device according to any of the preceding claims, characterised in that the nozzle tube (19) has a conical constriction in which the elastic element (18) engages with an integral cone.
- Device according to any of the preceding claims, characterised in that the diameter of the actuating piston (44) is greater than the diameter of the plunger (20) and sealing pin (50).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19617479 | 1996-05-02 | ||
| DE19617479A DE19617479A1 (en) | 1995-02-13 | 1996-05-02 | Device for generating adjustable fluid jet, especially for application of adhesive |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0804968A2 EP0804968A2 (en) | 1997-11-05 |
| EP0804968A3 EP0804968A3 (en) | 1998-08-19 |
| EP0804968B1 true EP0804968B1 (en) | 2002-10-02 |
Family
ID=7793017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97106508A Expired - Lifetime EP0804968B1 (en) | 1996-05-02 | 1997-04-19 | Device for producing an adjustable fluid jet |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5850974A (en) |
| EP (1) | EP0804968B1 (en) |
| JP (1) | JPH1034031A (en) |
| DE (1) | DE59708349D1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19849687A1 (en) * | 1998-10-28 | 2000-05-04 | Valeo Auto Electric Gmbh | Nozzle element for a windscreen washer system of a vehicle |
| US6250572B1 (en) * | 2000-09-07 | 2001-06-26 | Globe Union Industrial Corp. | Showerhead |
| JP5109850B2 (en) | 2008-07-16 | 2012-12-26 | セイコーエプソン株式会社 | Image carrier cleaning device, cleaning method, and image forming apparatus |
| CN117142752B (en) * | 2023-08-31 | 2024-02-27 | 佛山科学技术学院 | A nozzle adjustment mechanism for a gas jet nozzle |
| US20250121396A1 (en) * | 2023-10-17 | 2025-04-17 | Raven Industries, Inc. | Multifunctional nozzle assembly for agricultural vehicles |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE708961C (en) * | 1936-10-21 | 1941-08-01 | Hans Metz | Jet pipe for fire extinguishing purposes |
| US2793080A (en) * | 1949-03-19 | 1957-05-21 | Warren G Brown | Nozzle for spraying cementitious materials |
| US3291396A (en) * | 1964-11-30 | 1966-12-13 | Walter John | Self-purging mixing and spraying apparatus |
| US3550861A (en) * | 1968-08-28 | 1970-12-29 | William R Teson | Hose nozzle |
| US3711020A (en) * | 1970-07-06 | 1973-01-16 | R Zelna | High frequency solder paste gun |
| SU1057689A1 (en) * | 1982-06-10 | 1983-11-30 | Всесоюзный научно-исследовательский институт золота и редких металлов | Hydraulic monitor nozzle |
| JP2532323Y2 (en) * | 1990-10-26 | 1997-04-16 | 株式会社いけうち | nozzle |
| FR2687333A1 (en) * | 1992-02-14 | 1993-08-20 | Tecnoma | LIQUID SPRAY NOZZLE. |
-
1997
- 1997-04-10 JP JP9092332A patent/JPH1034031A/en active Pending
- 1997-04-14 US US08/843,284 patent/US5850974A/en not_active Expired - Fee Related
- 1997-04-19 EP EP97106508A patent/EP0804968B1/en not_active Expired - Lifetime
- 1997-04-19 DE DE59708349T patent/DE59708349D1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE59708349D1 (en) | 2002-11-07 |
| JPH1034031A (en) | 1998-02-10 |
| EP0804968A2 (en) | 1997-11-05 |
| EP0804968A3 (en) | 1998-08-19 |
| US5850974A (en) | 1998-12-22 |
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